Home / 43,128-64,692-13,944

Finding the Fourth Proportional to 43,128, 64,692 and 13,944

Calculator

Solution

The fourth proportional to 43,128, 64,692 and 13,944 is: 20,916

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,128 : 64,692 = 13,944 : x
  2. Step 2: Convert to fraction form
    43,128/64,692 = 13,944/x
  3. Step 3: Cross multiply
    43,128x = 64,692 × 13,944
  4. Step 4: Simplify right side
    43,128x = 902,065,248
  5. Step 5: Solve for x
    x = 902,065,248/43,128
  6. Step 6: Final answer
    x = 20,916

Related Problems

Find fourth proportional to 21,564, 32,346 and 6,972
Half scale
Find fourth proportional to 86,256, 129,384 and 27,888
Double scale
Find fourth proportional to 43,129, 64,693.50 and 13,945
Similar ratio
Find fourth proportional to 64,692, 97,038 and 20,916
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.